Color of Bead.
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| Substances which produce this color
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| in the hot bead. | in the cold bead.
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Colorless
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| Silica (only slightly soluble) | Silica (only slightly soluble).
| Alumina | Alumina.
| Oxide of Tin | Oxide of Tin. _
| Baryta | Baryta \
| Strontia | Strontia \
| Lime | Lime |
| Magnesia | Magnesia |With an
| Glucina | Glucina }intermittent
| Yttria | Yttria |flame
| Zirconia | Zirconia |opaque-
| Thoria | Thoria only when |white.
| | saturated /
| Oxide of Lanthanum | Oxide of Lanthanum/
| " " Cerium | " " Cerium.
| " " Didymium | " " Didymium.
| " " Manganese | " " Manganese.
| Tantalic Acid _ | Tantalic Acid.
| Oxide of Silver \ | Oxide of Silver _
| " " Zinc \ | " " Zinc \ After
| " " Cadmium | After long | " " Cadmium \ long
| " " Lead } continued | " " Lead | continued
| " " Bismuth | blowing. | " " Bismuth } blowing.